L-arabinose is an aldopentose which is more common than D-arabinose in nature. Dissolved easily in water , sparing soluble in ethanol; insoluble in aether, methanol, and acetone; 1L-Arabinose can dissolve in 48 ethanol(90%) .L-arabinose is a low-calorie sweetener and inhibitor of the sucrose. Therefore, it can prevent fat accumulation and protect against diabetes.